ut372: properly set encoding digits

diff --git a/src/dmm/ut372.c b/src/dmm/ut372.c
index 41d5a62b95f3f8602d58e4c56df1ea750faacdde..ef0677bc5364e9060130dd1c41d2fb1f7b6d898c 100644 (file)
--- a/src/dmm/ut372.c
+++ b/src/dmm/ut372.c
@@ -90,8 +90,9 @@ SR_PRIV gboolean sr_ut372_packet_valid(const uint8_t *buf)
 SR_PRIV int sr_ut372_parse(const uint8_t *buf, float *floatval,
                struct sr_datafeed_analog *analog, void *info)
 {
-       unsigned int i, j, value, divisor;
+       unsigned int i, j, value;
        uint8_t segments, flags1, flags2;
+       int exponent;
 
        (void) info;
 
@@ -116,7 +117,7 @@ SR_PRIV int sr_ut372_parse(const uint8_t *buf, float *floatval,
                analog->meaning->mqflags |= SR_MQFLAG_AVG;
 
        value = 0;
-       divisor = 1;
+       exponent = 0;
 
        for (i = 0; i < 5; i++) {
                segments = decode_pair(buf + 1 + (2 * i));
@@ -127,10 +128,13 @@ SR_PRIV int sr_ut372_parse(const uint8_t *buf, float *floatval,
                        }
                }
                if (segments & DECIMAL_POINT_MASK)
-                       divisor = pow(10, i);
+                       exponent = -i;
        }
 
-       *floatval = (float) value / divisor;
+       *floatval = (float) value * powf(10, exponent);
+
+       analog->encoding->digits  = -exponent;
+       analog->spec->spec_digits = -exponent;
 
        return SR_OK;
 }